Here's some videos that will show how it's done. This is shown on a softail style bike.
YouTube - How to Change Motorcycle Tires : Tools for Changing Motorcycle Tires
YouTube - How to Change Motorcycle Tires : Using a Scissor Jack to Change Motorcycle Tires
YouTube - How to Change Motorcycle Tires : Removing a Motorcycle Tire from the Wheel
YouTube - How to Change Motorcycle Tires : Motorcycle Tire Maintenance Tips
How long do tires last on a bike?
YouTube - Motorcycle Maintenance Accessories : How Long Do Motorcycle Tires Last?
When to change the tires on your bike?
Although not a harley the principle is the same.
YouTube - When to Change Your Motorcycle Tires
YouTube - How to Change Motorcycle Tires : Tools for Changing Motorcycle Tires
YouTube - How to Change Motorcycle Tires : Using a Scissor Jack to Change Motorcycle Tires
YouTube - How to Change Motorcycle Tires : Removing a Motorcycle Tire from the Wheel
YouTube - How to Change Motorcycle Tires : Motorcycle Tire Maintenance Tips
How long do tires last on a bike?
YouTube - Motorcycle Maintenance Accessories : How Long Do Motorcycle Tires Last?
When to change the tires on your bike?
Although not a harley the principle is the same.
YouTube - When to Change Your Motorcycle Tires